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Finding the Fourth Proportional to 514,396.77, 710,053.88 and 418,737.39

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Solution

The fourth proportional to 514,396.77, 710,053.88 and 418,737.39 is: 578,009.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,396.77 : 710,053.88 = 418,737.39 : x
  2. Step 2: Convert to fraction form
    514,396.77/710,053.88 = 418,737.39/x
  3. Step 3: Cross multiply
    514,396.77x = 710,053.88 × 418,737.39
  4. Step 4: Simplify right side
    514,396.77x = 297,326,108,470.57
  5. Step 5: Solve for x
    x = 297,326,108,470.57/514,396.77
  6. Step 6: Final answer
    x = 578,009.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.